End-to-end encryption and privacy controls.
Message and call for free* around the world.
Group conversations made simple.
Say it with stickers, voice, GIFs and more.
Reach your customers from anywhere.
今週のニューヨークタイムズ紙ベストセラー(ノンフィクション・ハードカバー編) https://youshofanclub.com/2009/03/14/post-4727-1/